Question

The measure of an angle is twice the measure of its supplementary angle. Find its measure.

Answer 1

Answer:

the answer is 360 because the measure of angle is twice the supplementary angle which os equal to 180

Answer 2

Answer:

120°

Step-by-step explanation:

let the first angle be x

and its supplementary angle be y

According to giveen condition:

x=2y.........(1)

x+y=180 degrees (property of supplementary angles)

therefore,

y=180-x

substituting the value of y in (1) we get,

x=2×(180-X)

x=360-2x

360=3x

therefore,

x=120 degrees